Overflow and heat indicator for automobiles



' w. H. MUZZY OVERFLOW AND HEAT INDICATOR FOR AUTOMOBILES Filed March 24, 1923 I 2 Sheets-Sheet 1 Iizi/enZZr June 2, 1925.v 1,540,275

. W. H. MUZZY oirznrmw AND mm mmcuon FOR AUTOMOBILES Filed March 24, 1923 tweets-sheet 2 To i2 wfiom '52 may cmwew'n. b5 known .li Wham I Limp" oii-izoi'i of fiaioisos rosiqi iihvonston, oouny of Cook nod of Iiiinois, hove invenooi oork-a'innon nooi'ui. )lmprovoments in Uvorfiow and loiiioo boxm for Aowi'nobiies, of Whi ii I do the foiiowing to o foil, Moor, and. rexoot closoripaioo.

This invention ralntes to improvemonts in moiilzhor indioaoors and hos more pm'tionior yoiooiion to improvemonts in illliiiCfiilUi'S ob tool Anglo 550 the ronoovoblo filier oorp of the "odiaizoz'. {l no of the principal objwts tho invention is to provide on infiiootor that will in oirm the opei'opor as oho ovei'i'iooizing radiator, or iho cooling fluid E 3; 112mm.- and cooiing syo iom isho o'vori 1 1o 1 this cooling fluid froz'n tho :n'io 123.1 3 fornintion of steam in the cooling syo A mom, i

Another obgect of the invention m provido an indicator, ootoohobio 'to no.

radiator cap, that will cause the overflow from the radiator to take piano within on sight of the operator.

stiii further object of the invention is to provide on indie-Moi bringing all ciis charge fi'om tho rooiiotoz, oifiier Water? or {atonin within sight 01 tho opomizoi,

A fui'i-ioi? object of" tho invention is to provide ans or indiomainp one o homing or voporizing of oii'i'foront flu ds yioood in the cooling system.

Anotizoi object '3 the invention is to proisoioiing ompemturo in on'i the of the no? noziiml cor fluid and bringing the "o; zioviejro iniao operation only when 0%? oimormoi hoot oonditiono cooling system,

'- on also has other objects oil hereinafter more pant-imp oioiinaxi.

ponying drawings forming 405 opooiiiowbion: 'wooresent o liaison: 1

vertical iooigitak (iewcos o liliii,

3 represents a diogmninmtio vi. of no Wow: oiroolooing systoi'n of on wo mobile, :0 which my improvomonts no piiooolo.

Hoi'etofore for as a ilicont is owniro. i A

i 1. s boon the practice to pie-ice hoot motor in tho radio-tor cop so that iflho o m swimming tho oizponsiioio oiomon.

oi into the oi? space present in, i

goo-i portion of the radiator. Tho Poi-3112i; oi: no prootmo is o variable mdmnoion mmtwioo the some; noznotor indioa aos n undo aim Zions, the ihorinomoifior I Un ooid doyo ztho one i on V oomo engine oonoi W indication is iiififo sout. The dongoi indication, Wh n Wflbibfil is. nsoci in the cooling oyomm, is at one point, Whereas "when oioo'noi mo in Winter, the danger point is -ifio-ioifit ono each addition of alcohol changes this fiongoi" poino to o new position. The operaizor @iio not know for ouro at any timo, just who; the. indication on the thermomob'oi." What might; be danger in; one time not don 'or at another time and under difforon s con itions. Applioant has endeavored in. the pi'eseno improvements to overcome uncertain indication and provide tivo indicotion of the conditions with which 5 tho operator Wishes to be kept informec'in Flo ihoreforo uses the usual thermometer for indicating don or anti removes this; from the immediate inuenco. of the normal hoo of on; cooling fluid but so ioooisos it that when oiinornio]. heat or steam io ofboc i Wi'il imlnodiateiy some int-o moi-ion owl g vo the danger siggnoi. Appiioon: also provides in tho voniiion posit-ins 0*" flow iniciio usuoi *oinpoiati7ro 4 ioznboir door: not intoo opoisotozv to overflow oonoiiiiions o'ni tho Weiioi" supply in the cooling oyo'ioim dopioteiir, wit'izoostho operator iming; aware iJho foot. y in tho aforesaid drawings 1 roprosoniss o a'ariivaior of an automobile, E2- the casing for tho o veirfioiv i dicator 3 the hem; indicator,

' The scruws up on the pigie lug co usual cap is provided Wiili a soft Washer 11 to form a. Water (igl 30ml; whom the neck 4 eniire de'vice is secured to the cap so as tuba removable with it, by out 9 which 8 agaii'ist a Waiter ti Washer 10. Tim lower cm? of ti ime 8 I;

GiiS down slightly below the RGlilllll over "i'iow position of the pipe 6 The upper and of the pipe 8 is fast in an ungular misting and when he nut is lii 'liiciicil, this casting is clmwn clown on a. waiei tight washer 3G mounted on the zap of the cap 5.

The casting 86 is hollowed out and screw tlireaiiccl as at 28 to receive the overflow cas- 2, the latter being provided with a nut 31 at iifis upper end so that ii may ho scrowe l to force the glass tube 26 Within the cop is plswocl in. position on do W21 light; it, clown on the Watfii tight wuolier 25% and against a similar washerlocateil at the up uer and of the casing and between it and clue upper of the tube. The 8 projects loosely tl'ii'ougli the wushei' and up into the glass tube so as to lac/plainly visible through the windows formed in the casingZ.

The angular ousting 313 passagewuv .12 opening .lhE

into Wliiii i the ilici'ummc Ii-acts. v When iL-iif: wfiic in. -o'rulliutiii' i by L 'ccci up by steam g'ioclcboiug o'vci'l'uu: I ,or 1; eis in ilutwait? jock cud of Mic pioc :azul 1 this upper pa 7 risc i1: tlurtubc, 127 within the gluis' the operator The \vzitoz ill cm: v high in the "hiss who as the ;lil' is "bra; in tho to of the -uuc uzui ull lo for the water down uiul mil 2. l

h 12 into alio chamber 13. file Wu;

in i this chuuibci' and sui'zxoulu'lsiiic tiioi-mimiete-r element 14 and iuuuoiliuicly cuuscs ilie tlici'iuoiiictcr to rise and indic'nic an over Flow condition. This (Wei-flow condition is of coui'se also visible. to thc operator us ii; takes place in the glass tube, 26. As the ovarflow takes place iii spurts however, the thermometer calls his which might for the limo have, escaped his noticc, but having once seen the tlicii'uomcter at overflow, his attention is called to the glass lube and he soon sees the actual ova flow. If he does uoi see this overflow with the thermometer. indicating overflow, i-llfill provided with attcniiun to the fact he iuikicinoil that the thermometer is rising in uuseof the presence oi vapor alone because the Water is too lo: to be. forced up into he iubc 5%. If this condition is not rcmeiliail, Mic tlici'inouietcr will soon rise to danger 811d post and indicate that steam under: pi-cu urge is flowing through the chino i191 The dischu from the chamber 13 through the pipe 15) secured its side wall new: the upper and.

Tho vertical Q iscl'im-go pipe slides freely over tlic lowc'l' wi l of the pipe 19 and is a disk 21 by which it is ruiscd and lowered. This; disk when in its uppci' position engages a latch nose 25E of a pivoted iaiclz Sill forced 'ufo latching posilion by acoil s u'i'ogg mounted iii: u Ioccss in the latch unil engaging the side of the chamber 13. "llzc latch 25G is pivoiecl on a, band last on H18 pipe 19. The .lowci end iJfiCk and the disk 21 pushed down until pin 51 on tube 2 CUfliflCtS with the sleeve 32.

The cup may now be freely rotated to 1121 screw it' from tl'ici'acliatoi'. W'hen the cap is soi'cwed back into position again the disk 21 is simply snapped up again to tho posi tion shown in Figure 1.

.li will bescou that the overflow from ihe chan'iucr 13 is at :1 point. illgllfil um lie to of the tube 5: but iliis not resuaiz, J might be; supposed, in the glass tube 2i? with u'ziici' when an overflow mkcs when lie \mi'cr iirsl sturiss to ovor will all om film uppei 2nd '1 the passage; l2) and the 'iho ('llZUHi'dl 13. The fill is; now hopped in i'ilQ upper part of H10 glass tube 26 and any more Water forced o the tube will create u tubepressure iich will causei-iie water to rise the ilililifil' lifuim finally ovcrflow from pipe This keeps the upper end of the tube clear or" Water that the jet of Waller may be; seen. I

This is the normal operation of Lhe device, bu: should :2 condition arise with {L sudden press-m1. of steam present, then the sudden spurt of 'Wflilfil' under pressure fr m the pipe 27 will force most of the air out of the glass tube and fill it with Water. As @11 5 pi-cssuro in thormliator decreases the iv-titer in ihc upper part of the glass tuba will feed back into tho radiator again and Water in the lower pzirb of the glass tube will feed out of the tube into the chamber because of the light pi'ossura coming froin the tube 8 from the radiator, Wale/1' falling through the tube 22 will have a slight siphon action to draw water out of the tube 26.

' tion needing immediate attention.

3. The overflow of-alcohol and water be cause of overheating.

4. The formation of gas from an alcohol mixture.

' 5. A ositive indication of either overflow or the ormation of steam or gas (no cal- J culating on a scale).

- water itself.

i 7. A thermometer which acts only when danger is present.

Applicant has taken advantage of the fact that in most heat engines in use at the present time, the water cooling system is so arranged (see Figure 3) that theformm tion of steamer gas in the engine water jackets will cause a rise of water in the radiator by' driving the water from the water ackets and from the connecting pipes. When the water level'falls so low that the steam may escape from the water jackets through the pipe 37 to the radiator,

-without forcing water before it into the radiator, then a serious point has been reached. This condition is immediately indicated on applicants improved instrument; 1

' Itwill be seen thatthe present invention may beapplied to all water cooled machines now in use in the same manner that the so called 'motor meter is now applied and that in such cases asthe owner already has a motor meter, this latter may be applied to the chamber 13 just as it was then applied to the radiator cap.

pm ing application No. 532,368,

' The present invention is an im rovement his coed Jan. 28, 1922, water and vapor indicators for on a plicants invention covered automobiles.

In applying the motor meter 3 to the has provided an instrument 'whichvention may be used without attaching-it to the radiator cap, as for instance on the dash board of the machine within sight of the o erator and connecting it-to the radiator y. a pipe which connects with the upper part of the radiator.

Having thus described my invention what I claim as new and desire to secure by Letters. Patent is:

1. In an automobile the combination with an engine and its water cooling system ineluding a radiator, of a closure cap for the 6. Sight indication of vthe overflowing filling opening of the radiator, an overflow device for the radiator mounted on the cap to cause the overflow to take place on a plane higher than the cap, and a heat indicator located to be influenced by the overflow alone.

2. In an automobile the combination with an engine and its water coolin system including a radiator, of an over ow pipe for the radiator, and a heat indicatorlocated to be influenced-b the overflow alone.

' 3. In an automo ile the combination with an engine and its water cooling system ineluding a radiator, of a closure cap for the filling opening of the radiator, a glass chamber mounted on the cap, a pipe projecting from the interior of the radiator into the 7 glass chamber and acting as an overflow "for the radiator, a motor meter mounted in connection with and under the influence of the overflow, and a detachable overflow pipe connected to the glass chamber.

4. In an automobile the combination with: an engine and its water cooling system in cluding a radiator, a visible overflow device connected to the radiator, and a heat indicator past which the overflow. must pass.

In testimony whereof I afiix my signa ture in the presence of a witness.

WILLIAM H. MUzzY'. Witness:

Mu r Isumu Mom. 

